Using a Monte-Carlo model to identify best filler arrangement in thermally conductive materials
- Resource Type
- Authors
- Pierre Descamps; S. Teixeira; G. Van Wassenhove; G. Beaucarne
- Source
- Microelectronics Journal. 46:1179-1184
- Subject
- Filler (packaging)
Materials science
Thermal conductivity
Conductive materials
Composite number
Monte Carlo method
General Engineering
Particle
Composite material
Large size
- Language
- ISSN
- 0026-2692
A 2D Monte-Carlo model was built to calculate the probability of paths creation between the two interfaces of a TC material via direct contact between filler particles. This model allowed studying the impact of the filler size with respect to the distance between the two interfaces on the probability of direct TC paths creation. Calculation is carried-out considering one single filler size and a mixture of two fillers of different dimensions. The material was divided in a grid and the filler loading was expressed as the % of cell occupation by a particle. We demonstrated that for any degree of filler loading, it is beneficial to use large size particles compared to the distance between the two interfaces. The calculated equivalent thermal conductivity shows a maximum impact of filler particles size for 50% of cell occupation.